Thermoplastic comparison
Polyethylene, high-density (HDPE) vs LCP (liquid crystal polymer)
Every value below is a typical room-temperature figure with its source, test method and conditions — the same dataset that drives the calculators.
| Property | Polyethylene, high-density (HDPE) | LCP (liquid crystal polymer) | Difference |
|---|---|---|---|
| Density | 0.95 g/cm³ | 1.4 g/cm³ | LCP (liquid crystal polymer) — 47% higher |
| Young's modulus E | 1 GPa | 10.6 GPa | LCP (liquid crystal polymer) — 10.6× higher |
| Tensile strength | 27 MPa | 182 MPa | LCP (liquid crystal polymer) — 6.7× higher |
| Melting point Tm | 131 °C | 280 °C | LCP (liquid crystal polymer) — 149 °C higher |
Where these numbers come from
- Callister & Rethwisch, Materials Science and Engineering, 10th ed.
- Celanese Vectra A950 liquid crystal polymer datasheet, typical (flow-direction) values
Typical room-temperature values for learning and preliminary design; grades vary widely and a supplier datasheet always overrides a textbook figure. Confirm against the datasheet before design work.